<!DOCTYPE html>
<html class="reftest-wait">
  <body>
    <iframe id="foo"></iframe> 
    <script type="text/javascript">
        var n = document.getElementById('foo');
        var f = n.contentWindow;
        f.document.open();
        f.document.write('');
        f.onload = function() {
          f.document.designMode = 'on';
          setTimeout(function() {
            f.document.designMode='on';
            f.location = 'data:text/html;charset=utf-8,<body>FAIL<script>document.body.innerHTML="PASS"<\/script>';
            n.addEventListener("load",
                               function() { document.documentElement.className = ''; },
                               false);
          }, 0);
        };
        f.document.close();
    </script>
  </body>
</html>
